Start with one business question
A long risk-factor section can make every company sound equally fragile. The useful question is narrower: which disclosed uncertainty could change the business assumption you are investigating? This tutorial shows how to compare two disclosures, distinguish a possible problem from a reported event, and create a follow-up record you can revisit alongside ThesisMemo research.
Choose one company and one dependency, such as a key supplier, customer concentration or access to a particular market. Begin with the relevant company research and follow its available source links. Keep the comparison in your own document or spreadsheet. This is a manual reading workflow; it does not assume that ThesisMemo provides a filing-difference viewer or a risk-scoring tool.
Write the assumption before opening the risk section. For example, your hypothetical assumption might be that a business can deliver its planned production using its existing suppliers. That gives you something concrete to test. Reading without a question makes it easier to collect alarming sentences without understanding their relevance.
Establish the two documents you are comparing
For a US domestic issuer, locate the annual Form 10-K and the later filing you want to examine. The SEC’s 10-K reading guide identifies Item 1A as the risk-factor section. Investor.gov explains that Form 10-Q provides quarterly reporting during the first three fiscal quarters. Use each document’s table of contents to find the relevant discussion.
Record the company name, form, reporting-period end, filing date and source URL for both documents. The filing date tells you when the document became available; the reporting period identifies the period it covers. Preserve both. A later download date does not turn an older filing into new evidence.
Check whether the later document points back to earlier disclosures. Follow that reference before treating an abbreviated section as a complete replacement. If a document is amended, read what the amendment changes rather than assuming every section was revised. When you cannot establish the correct baseline, label the comparison incomplete and retain the source trail.
Compare meaning before counting changed words
Place the relevant passages beside each other. In your own words, summarize the business dependency, possible disruption and stated consequence in each version. Then identify what actually changed: a new dependency, a different geographic scope, a changed contract condition, an observed incident or simply a revised explanation.
A text comparison can help locate edits, but an edit count is not a measure of business importance. A short added sentence may describe a specific event, while a large rewritten paragraph may preserve the same underlying uncertainty. Read the surrounding material before assigning a conclusion to the highlighted wording.
Use four working labels: unchanged meaning, clarified explanation, newly described exposure and reported development. These are personal research labels, not formal legal determinations. If two labels seem plausible, write the ambiguity down. The purpose is to make your reasoning inspectable, not to force every passage into a confident classification.
Work through a hypothetical supplier example
Imagine a fictional business, Cedar Systems. Its earlier annual report says that it depends on one supplier for a specialized component and could experience shipment delays if that supplier is disrupted. A later fictional disclosure adds that the supplier experienced an outage and that Cedar is qualifying an alternative. These invented disclosures do not describe an actual company.
The supplier dependency was already known. The reported outage is new evidence within this exercise, and the alternative supplier is a response under way. Neither statement establishes that the alternative has been approved, that production is back to normal or that the financial effect is immaterial. Your note should preserve those separate stages.
Write the comparison as three lines: prior exposure, new reported development, unresolved operational outcome. Next, identify the evidence that would close the gap, such as a later issuer disclosure confirming qualification or describing shipment effects. Avoid writing that the risk has disappeared merely because management has described a possible response.
Test the size of an exposure without inventing a loss
Continue with an explicitly hypothetical calculation. Suppose Cedar separately reports that products using the component generated $30 million of its $200 million annual revenue. Those products represent 15% of that annual revenue base: 30 divided by 200. The calculation describes exposure under the stated assumptions, not revenue that has already been lost.
A 15% exposure does not establish a 15% sales decline. Existing inventory, alternative inputs, timing, customer demand and the scope of the disruption could affect the outcome. You would need evidence about those variables before estimating an effect. Do not replace the missing evidence with an arbitrary probability and call the result a company forecast.
In the worksheet, retain the numerator, denominator, period, scope and source of each real figure you use. If the company reports only a qualitative dependency, keep the analysis qualitative. A precise-looking percentage built from an unrelated segment or a different year can be less informative than an honest statement that the exposure is not quantified.
Look for corroborating context inside the filing
Read the business description to understand why the dependency exists. Then look for relevant discussion in management’s analysis and the financial-statement notes. The SEC’s 10-K guide describes these as different parts of the report. They can help you connect an operational question with reported results, while retaining the boundaries of each disclosure.
For the fictional supplier issue, a useful follow-up might be whether management describes shipment delays in its results discussion. A change in inventory alone would not prove the outage caused it. Record the company’s explanation where one is given, and distinguish that explanation from a causal connection you inferred yourself.
Do not count three sections from one company filing as three independent confirmations. They provide related evidence from one reporting entity. If you consult another source, verify what it independently establishes. A news story repeating the same announcement does not resolve a missing operational detail simply because it appears on another website.
Create a checkpoint that can change your interpretation
Build one worksheet row with these fields: business assumption, earlier disclosure, later disclosure, meaning of the change, unresolved question and next evidence to check. Keep the source locations beside the relevant text. A future reader should be able to see which part of the row came from the company and which part came from your analysis.
Choose a checkpoint that is observable. For Cedar, it could be a company statement about supplier qualification or a disclosed shipment impact. Set a review occasion, such as the next relevant filing, without pretending the company has promised an answer then. If the next report is silent, the question remains open.
Include evidence that would weaken your concern as well as evidence that would strengthen it. A confirmed alternative supply arrangement might change one part of the assessment; a continuing delivery problem might change another. Keep the conclusion proportional to the evidence instead of treating every update as a complete reversal of the investment story.
Return to ThesisMemo with a traceable note
Reopen the company research and check its review date before comparing it with your findings. ThesisMemo’s methodology distinguishes reported facts, possible implications and research checkpoints. Use the same separation in your own note: what the source says, what you think it could mean and what remains to be verified.
If the company assessment predates your source, preserve that timing difference. Do not assume that every newly published filing has already changed the assessment. Equally, do not treat an unchanged risk paragraph as proof that nothing has changed elsewhere in the business. Your comparison covers the documents and question you actually examined.
Finish with a short conclusion that another reader could reproduce. State whether the disclosure adds a new exposure, reports an event or mainly clarifies existing wording; identify the supporting passage; and name the next check. That is a more useful research output than a universal risk score derived from the number of warning words.
Product references
Questions & answers
Does a newly added risk factor mean a problem has already happened?
Read the actual language and supporting disclosure. A newly described possibility and a reported incident are different observations. Do not convert a conditional warning into an assertion that the company has suffered the outcome.
Does unchanged wording mean the risk is unchanged?
It establishes only that the wording you compared did not change. Read relevant new disclosures and retain any unresolved questions. The company’s circumstances and the information available to you may not be fully described by one paragraph.
Can I use the number of risk factors to compare companies?
A count does not preserve differences in business models, writing structure or the meaning of each disclosure. Compare specific exposures and the evidence relevant to your question rather than ranking companies by the length of their risk sections.
Will ThesisMemo automatically compare these filings for me?
This guide uses your own document or spreadsheet for the side-by-side comparison. ThesisMemo provides company research and available source links. The workflow does not assume an automatic redline, a stored risk worksheet or a complete archive of every disclosure.
What should my finished note contain?
Keep the earlier and later source locations, a concise description of the change, your interpretation and one observable follow-up question. Mark hypothetical calculations and missing evidence clearly so that you can revise the note when the next relevant disclosure appears.